JPS5915677B2 - Automatic sewing and unloading device for cylindrical pieces - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides automatic sewing of a sewn product having an overall cylindrical shape (hereinafter referred to as a cylindrical piece) in secondary processed sewn products such as shorts, briefs, etc. This invention relates to a series of operations for automatically transporting pieces, which can be performed with a dramatic improvement in interpersonal efficiency.

For example, as an example of cylindrical pieces, for shorts, sweatshirts, etc., it is essential to sew the so-called Ogami-e-bu, which involves sewing a bag-like part through which an elastic cord is inserted through the perforation, using a single-sided, two-needle sewing machine. It is said that

As is well known, the Ogami-e process involves folding the perforated side end three times to form a bag tube, inverting the bag tube, and pulling one side of the inverted bag tube into the body. It consists of the Ogami-e process of sewing and fixing it to the side, and in the case of cylindrical pieces such as briefs, trunks, and long pants, two elastic cords are usually inserted into the bag tube. The Ogami edge sewing is slightly different in that it is applied to the center part of the bag tube part, but it is necessary for existing industrial sewing machines to automatically perform the sewing work of the Ogami edge part of such a cylindrical piece. An automatic sewing machine with an additional automatic mechanism has already been proposed, for example, as seen in U.S. Pat.

In such automatic sewing machines, the operator usually feeds the perforated part of the cylindrical piece into the machine's presser foot, and when automatic sewing is finished, releases the machine presser foot and other parts and stops the sewing machine to sew the cylindrical piece. It is sufficient to simply remove the machines from the machine, but in industrial mass production, it is important to make it possible for one worker to easily manage as many automatic sewing machines as possible in order to improve human efficiency. This is an extremely important point.

In other words, it is important to easily manage as many sewing machines as possible by a single worker, and to be able to perform sufficient checks on finding and repairing machine failures, transporting products, etc. within the smallest radius of movement. From the perspective of the total cost of the product,
This is an area that is difficult to ignore from the perspective of effective distribution and reduction of labor force during working hours.

The present invention centrally gathers such automatic sewing machines for cylindrical pieces in a minimum space, and automatically and continuously carries out individual products from them in a fixed position, so that the efficiency of pairing remains unchanged. It dramatically improves interpersonal efficiency, allowing workers to achieve their objectives by simply feeding the material into the presser foot of each sewing machine. The automatic sewing machine for sewing cylindrical pieces has a multi-head sewing section arranged radially on a rotary table at equal angles with respect to the rotation center of the table, and the multi-head sewing section is arranged outside the rotary table, A pair of belt conveyors whose belt surfaces are vertical are arranged parallel to each other in the horizontal direction, and the other end can be opened and closed using one end of the conveyor as a fulcrum, and the whole can be raised and lowered in the vertical direction. A finger for gripping and pulling out the cylindrical piece, and a rotary plate disposed below the finger and having a support surface for planarly supporting the cylindrical piece gripped by the finger are provided so as to be rotatable in the vertical direction. A conveyor for receiving the cylindrical pieces on a rotating plate of the stacking member.

The present invention will be described in detail below with reference to the illustrated embodiments. Fig. 1 shows an automatic sewing machine 1 used in a multi-head sewing section according to the present invention
Fig. 2 is a longitudinal sectional front view of the embodiment of the multi-head sewing part of the present invention, Fig. 3 is an oblique view of the finger for gripping and pulling out the cylindrical piece, and Fig. 4 is a stacking with the finger. Fig. 5 is a diagram illustrating the positional relationship between the members and the multi-head sewing part, but in the present invention, the content structure of the automatic sewing machine itself is free, and it is possible to Although it is applicable to any device that automatically sews the required parts of a piece, the method shown in FIG. 1 is based on Utility Model No. 56-17069 filed by the present applicant mentioned above.

An example in which a top pressing process is performed at the perforated portion of a cylindrical piece is shown.

In other words, 1 indicates a cylindrical piece such as shorts, 2 a sewing machine stand, 3 a sewing machine presser foot, 4 a sewing machine needle, and one side of the cylindrical piece 1, such as a perforation for top press sewing. Side 1
One side 1a of a is guided by a feed roller 5 that promotes stable running, a sewing machine presser foot 2, a fabric edge regulation ruler 6, etc., and undergoes the required automatic sewing, and the other 7 is a fabric that is controlled by a light emitter and receiver, etc. Detection sensor, 8 is a holding member, 9
10 indicates a guide ball for hooking the convex seam of the top puller, and 10 indicates a guide bar for releasing the body material of the cylindrical piece 1 (for details, refer to No. 17069/1983). In sewing the shaped piece 1, the present invention uses a multi-head sewing machine 11 as shown in the second figure.

That is, in FIG. 2, reference numeral 11 indicates the automatic sewing machine as illustrated in FIG. A plurality of (for example, four or more) automatic sewing machines 11 are installed on the top surface of the rotating table 15,
All of these devices are arranged radially equiangularly with respect to the rotation center of the rotation tube shaft 14. At this time, guide rails 16 are installed at corresponding positions on the table 15, and various control mechanisms of the sewing machine 11 are installed. The control unit 11a containing built-in components is removably attached via the wheels 17, and this means that if a sewing machine 11 that has failed is pulled out and a replacement sewing machine 11 is immediately attached in a push-in manner, productivity can be improved. This is designed to prevent a decrease in

In order to drive the rotary tube shaft 14 in this figure, a prime mover 18 such as a motor, a speed reducer 19, and a transmission member 20 such as a belt or a bobbin are provided in the bed 12 to move the table 15 at a predetermined position. It is possible to rotate under the speed, and table 1
A roller 21 is arranged on the lower surface of the periphery of the roller 5 to ensure smooth and light rotation.

Furthermore, each sewing machine 11 is equipped with its own dedicated motor 22, and inside the rotating tube shaft 14 are various necessary electrical wirings 23.
A piping 24 for compressed air and other fluids is passed through and introduced into the control section 11a of each sewing machine 11, and the electrical wiring 23 is connected to a power source 25, a switchboard 26, etc., and the piping 24 is equipped with a connection port 27, etc. It is intended to be done.

The table 15 is fixed to the tube shaft 14 by key fitting or the like, shares the bearing 13, and 42 is a lower bearing seat of the tube shaft 14.

It goes without saying that the rotational speed of the rotary table 15 and the number of sewing machines 11 to be installed are appropriately determined depending on the top press process and other necessary work time for the cylindrical piece 1.

Further, in the present invention, a mechanism is installed outside the table 15 of the multi-head sewing section to automatically take out and convey the cylindrical piece 1 to be sewn on each sewing machine 11.

These are shown in Figures 3.4 and 5, respectively.

That is, in FIGS. 3 and 4, 28 is a gripping and pulling finger, and the finger 28 is a pair of fingers 28.
a) Belt conveyors 29a and 2 are installed at 28b, respectively.
9b is indicated by arrow a in FIG. 3 by each group of 30 foils.
One finger 28 is installed so that it can freely rotate in the direction
A is supported at the upper end of the support column 31 by a pivot 32 so as to be able to rotate up and down in the direction of the arrow as shown from the solid line to the chain line in FIG. By being supported by the piston rod 33a of the cylinder 33, the finger 28b is open at one end in a fan shape as shown by arrow C in FIG. 3 relative to the finger 28a, and can be joined freely.

In order to raise and lower the finger 28a, a drive cylinder 34, a piston rod 34a and a link 35 are used as shown in the fourth figure.
A motor 36 for driving the belt conveyors 28a and 28b is installed on the finger 28a.

A stacking member 37 is movably provided on the back side of the finger 28 using the support 31.

The member 37 receives the cylindrical piece 1, one side of which is gripped by the fingers 28, in a plane on a rotation shaft 39 that is rotatably provided on the support 31 via a rotation mechanism such as a rotary cylinder 38. A rotary plate 40 having a bearing surface 40a is provided so as to be rotatable back and forth toward the fingers 28, and FIG. is shown, and 41 indicates a conveyor on which the cylindrical piece 1 is transferred from above the stacking member 37.

It should be noted that each drive mechanism in the fingers 28 and the drive mechanism in the stacking member 37 shown above, as well as the rotary table 1
It goes without saying that the rotation mechanism etc. of 5 are not limited to the illustrated example and can be freely designed.

The automatic sewing operation according to the present invention is performed as follows.

That is, the operator places a predetermined portion of the cylindrical piece 1 on the sewing machine presser foot of each automatic sewing machine 11, which rotates in front of the operator who is at a fixed working position due to the rotation of the rotary table 15. By supplying as shown,
In each sewing machine 11, the Ogami-e process and other necessary sewing processes for the cylindrical piece 1 proceed automatically, and when the sewing machine 1 comes to the grasping and pulling finger 28 position with the cylindrical piece 1 that has been sewn, The arrival of the cylindrical piece 1 is detected by a phototube or other sensor member, and the cylindrical piece 1 is inserted in a hanging state between the fingers 28a and 28b, which are in a fan-shaped open position by the cylinder 33, as shown in the third figure. One end of the piece 1 is grasped by closing the fingers 28a and 28b by the actuation of the cylinder 33, and the finger 28b is also moved along with the upward rotation of the finger 28a about the pivot 32 as a fulcrum by the actuation of the cylinder 34. -2B as a whole is in a horizontal position at the same level as the height of the sewing table of the sewing machine.

At this time, the required sewing part, for example, the waist area such as the perforation, is still clamped by the sewing machine presser foot (however, the sewing machine automatically stops the sewing movement when the sewing is completed).

Next, the sewing machine presser foot 3, in the case of FIG. , a pair of gripping belt conveyors 2
9 a t 29 b is driven in the direction of the arrow a in FIG. Sewing machine 1 with the piece-side gripped
It will be removed from the first side.

The cylindrical piece 1 pulled out at the same time is suspended in a vertical position with the gripping side as the upper end, and is positioned outside the table 15. At this position, the pair of fingers 28a and 28
b. Therefore, if the belt conveyors 29a and 29b are opened (fan-shaped opening by the cylinder 33), the cylindrical piece 1 released from the grip will try to fall, but at the same time as this, the rotating plate 40 of the stacking member 37 the finger 2
By rotating the cylindrical piece 1 in a prone position in eight directions, the supporting surface 40a of the rotating plate 40 rotates while holding the cylindrical piece 1 in its flat, unfolded position. 1 are carried out and piled up in an orderly manner on the conveyor 41 in an open position.

When this carrying out is completed, the stacking member 37 returns to the old upright position, and the fingers 28 also return to the forward tilted state from the horizontal position under the fan-shaped open position, and the cylindrical piece 1 is sewn by the next rotation of the sewing machine 11. will be prepared for.

The present invention is as described above, and by arranging the automatic sewing machines 11 in a radial row with equal distribution from the center on the rotary table 15, a large number of sewing machines 11 can be integrated and compacted in one work space. By collecting data on a machine, a single worker can easily monitor the operation status of each sewing machine, the progress status of sewing and other work, and can easily monitor the operation status of each sewing machine, find out which sewing machine is malfunctioning, check thread breakage, thread splicing, etc. Repairs of simple troubles such as misalignment of the sewing machine can be quickly and easily done within the minimum radius of action, and in the case of a malfunctioning sewing machine, a replacement sewing machine 11 can be immediately replaced. It is easy and allows efficient work to be done in a narrow work space.

Further, the product can be taken out from each sewing machine 11 automatically by gripping one end by opening and closing the fingers 28, completely gripping the piece side by the belt conveyor 29, and extracting the product from the sewing machine 11 side. 1
Also, due to the rotary plate 40 of the rotatable stacking member 37, it is possible to reliably and easily carry out the stacking of the cylindrical pieces 1 in a flatly unfolded position. It is clear that the number of sewing machines can be increased dramatically compared to models in which sewing machines are simply installed in series, and it is possible to maintain a large number of sewing machines without forcing workers to do excessive work. It is easy to carry out and is excellent for more efficiently carrying out various automatic sewing processes on cylindrical pieces.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of one example of an automatic sewing machine to which the present invention is applied, Fig. 2 is a longitudinal sectional front view of a multi-head sewing section of an embodiment of the device of the present invention, Fig. 3 is a perspective view of the same finger embodiment, and Fig. 4 The figure is a front view of the finger and the stacking member, and FIG. 5 is an explanatory diagram showing the positional relationship between the multi-head sewing section and each member for gripping, pulling out, and stacking the product. 11... Automatic sewing machine, 15... Rotating table, 2B... Grasping/pulling finger, 37... Stacking member, 1... Cylindrical piece, 28 a y 28 b...Finger, 29at29b...Belt conveyor, 40.
...Rotating plate, 40a...Supporting surface.

Claims (1)

[Claims] 1. An automatic sewing machine for sewing cylindrical pieces has a multi-head sewing section arranged radially and equiangularly with respect to the rotation center of the table on a rotary table, and the multi-head sewing section is arranged outside the rotary table. A pair of belt conveyors whose belt surfaces are vertical are placed parallel to each other in the horizontal direction, and the other end can be opened and closed using one end of the conveyor as a fulcrum, and the entire cylinder is provided so that it can rise and fall freely in the vertical direction. A finger for gripping and pulling out the cylindrical piece, and a rotary plate disposed below the finger and having a support surface for planarly supporting the cylindrical piece gripped by the finger are provided so as to be rotatable in the vertical direction. 1. An automatic sewing and delivery device for cylindrical pieces, comprising a stacking member and a conveyor for receiving the cylindrical pieces on a rotating plate of the stacking member.